This kit fits all stock Oldsmobile engines from 1966-1976 except the #2 and ‘A’ type cylinder heads. The kit includes rockers, rocker arm pivots, shims and crossover retaining straps. Specify application in the ‘Comments’ section of the checkout form page.

Steel Roller Rocker set by Mondello. These are available for cast iron cylinder heads only. This kit can be installed instantly without machine work and can be used with any hydraulic, mechanical or roller camshaft up to 500 lbs of open spring pressure. These rockers will fit under stock valve covers (without oil baffles) using our VC-499 valve cover gaskets. Rockers have a true 1.6:1 ratio and are fully adjustable for setting proper valve lash and lifter preload. Kit includes roller rockers & mounting hardware. Specify application data in comments.

This kit was specifically designed for the Mondello or Edelbrock aluminum cylinder heads. These rockers are shaft mounted and the width of the shaft can be adjusted between the rockers for optimum fit. 7/16 bolts included, no guide plates required. These rockers will only fit under our VC-460 Tall Chrome or Tall Aluminum Valve Covers.

All 400-425-455 big blocks ( ‘A’ heads must be drilled and tapped). For street and strip, requiring no machine work. Rockers have a 1.6:1 ratio, Includes: 7/16 bottom / 7/16 top thread studs, 7/16 rockers, guide plates, 9.700″ x 5/16 pushrods, and 7/16″ poly locks for positive adjustment. Valve covers without baffles and sometimes two valve cover gaskets are needed to run these rocker arm kits. We recommend a maximum lift of .540″ and no more than 320 lbs. of open spring pressure. The pushrod lengths and stud sizes above are intended for cast iron heads. Specify all application data in comments.

All 400-425-455 big blocks, except ‘A’ heads. For street and strip, requiring no machine work. Rockers have a 1.6:1 ratio, using a 3/8″ chrome moly rocker stud, 5/16″ guide plate, 9.700″ x 5/16 chrome moly pushrods, and 3/8″ poly locks for positive adjustment. Valve covers without baffles and sometimes two valve cover gaskets are needed to run these rocker arm kits. We recommend a maximum lift of .540″ and no more than 320 lbs. of open spring pressure. The pushrod lengths and stud sizes above are intended for cast iron heads. Specify all application data in comments.

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